1997 QK1

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6464564851 ± 2.23e-09
Semi-major axis (a)2.7831080593 AU ± 9.82e-09
Inclination (i)2.85157676° ± 8.08e-07
Long. of Asc. Node (Ω)306.46998690° ± 6.95e-06
Arg. of Perihelion (ω)3.20882168° ± 7.41e-06
Mean Anomaly (M)22.59403957° ± 3.29e-07
Mean Motion (n)0.2122839562°/day ± 1.12e-09
Perihelion dist (q)0.98394981 AU ± 7.12e-09
Aphelion dist (Q)4.58226631 AU ± 1.73e-08
Orbital Period4.64296172 yr ± 2.46e-08
NGA Modelr2
A2-3.21088531e-14 ± 1.35e-14 AU/d²
Physical Parameters
H (abs. magnitude)20.26
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.250″
Uncertainty0
Orbit TypeApollo
MOID0.017116 AU
Observations Used662
Radar Obs Used9
Oppositions22
Arc Total1997-2025
First Observation Used1997-08-27
Last Observation Used2025-11-13
Observations (726)
Date Type RA Dec Mag Band Observatory
2025-09-25 10:15:56 C 01 12 05.304 +22 56 45.38 V T05
2025-09-25 10:25:57 C 01 12 04.896 +22 56 37.68 V T05
2025-09-25 10:33:05 C 01 12 04.622 +22 56 32.32 V T05
2025-09-25 14:05:21 C 01 11 56.038 +22 53 43.91 X F51
2025-09-25 14:24:32 C 01 11 55.316 +22 53 28.23 X F51
2025-09-25 14:43:29 C 01 11 54.614 +22 53 12.61 X F51
2025-09-26 23:09:56 B 01 11 00.59 +22 28 16.2 X L76
2025-09-26 23:31:35 B 01 10 59.80 +22 27 59.5 X L76
2025-09-26 23:53:13 B 01 10 59.01 +22 27 42.9 X L76
2025-09-27 22:46:00 B 01 10 20.90 +22 10 44.2 X L76
2025-09-27 23:02:51 B 01 10 20.28 +22 10 31.7 X L76
2025-09-27 23:19:42 B 01 10 19.69 +22 10 19.0 X L76
2025-09-27 23:35:22 B 01 10 19.12 +22 10 07.3 X L76
2025-09-28 19:37:11 B 01 09 48.072 +21 55 25.56 W G34
2025-09-28 19:40:02 B 01 09 47.975 +21 55 23.47 W G34
2025-09-28 19:42:54 B 01 09 47.895 +21 55 21.59 W G34
2025-09-28 19:45:46 B 01 09 47.806 +21 55 20.06 W G34
2025-09-28 19:48:38 B 01 09 47.713 +21 55 18.12 W G34
2025-09-29 11:11:07 C 01 09 20.923 +21 44 39.30 V T05
2025-09-29 11:18:36 C 01 09 20.609 +21 44 34.33 V T05
2025-09-29 11:23:21 C 01 09 20.467 +21 44 30.34 V T05
2025-09-29 12:14:15 C 01 09 18.502 +21 43 53.76 V T05
2025-09-30 11:15:48 C 01 08 41.978 +21 27 40.75 V T05
2025-09-30 11:20:41 C 01 08 41.808 +21 27 37.19 V T05
2025-09-30 11:29:05 C 01 08 41.484 +21 27 30.82 V T05
2025-09-30 11:58:24 C 01 08 40.399 +21 27 10.51 V T05
2025-09-30 19:24:58 C 01 08 27.76 +21 21 49.6 V D29
2025-09-30 19:45:20 C 01 08 27.10 +21 21 34.8 V D29
2025-09-30 20:05:42 C 01 08 26.43 +21 21 20.2 V D29
2025-10-01 11:17:53 C 01 08 03.962 +21 11 03.30 V T05
2025-10-01 11:23:54 C 01 08 03.840 +21 10 59.59 V T05
2025-10-01 11:33:02 C 01 08 03.487 +21 10 53.87 V T05
2025-10-01 12:17:39 C 01 08 01.882 +21 10 22.55 V T05
2025-10-02 08:29:39 C 01 07 32.983 +20 56 39.80 X F52
2025-10-02 08:47:01 C 01 07 32.393 +20 56 28.54 X F52
2025-10-02 09:04:24 C 01 07 31.801 +20 56 17.32 X F52
2025-10-03 01:19:12 C 01 07 05.592 +20 45 11.56 Z G19
2025-10-03 01:27:42 C 01 07 05.350 +20 45 04.43 Z G19
2025-10-04 05:00:24 C 01 06 27.014 +20 27 12.20 V G96
2025-10-04 05:07:52 C 01 06 26.780 +20 27 07.67 V G96
2025-10-04 05:15:19 C 01 06 26.550 +20 27 02.99 V G96
2025-10-04 05:22:45 C 01 06 26.323 +20 26 58.38 V G96
2025-10-04 11:03:39 C 01 06 16.853 +20 23 27.74 V T08
2025-10-04 11:38:54 C 01 06 15.677 +20 23 04.99 V T08
2025-10-04 11:51:18 C 01 06 15.254 +20 22 56.78 V T08
2025-10-04 11:51:58 C 01 06 15.247 +20 22 56.28 V T08
2025-10-04 11:53:17 C 01 06 15.197 +20 22 54.95 V T08
2025-10-04 11:58:01 C 01 06 14.995 +20 22 51.46 V T08
2025-10-04 11:59:13 C 01 06 14.978 +20 22 50.99 V T08
2025-10-04 12:05:46 C 01 06 14.791 +20 22 46.52 V T08
Radar Observations (9)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2025-08-15 00:20:00 466498.317 2 Hz 8560 -14 -14
2025-08-15 00:50:00 463286.158 2 Hz 8560 -14 -14
2025-08-15 01:20:00 36485008.073 20 us 8560 -14 -14
2025-08-15 02:00:00 36356530.241 2 us 8560 -14 -14
2025-08-17 01:30:00 27686626.8 1 us 8560 -14 -14
2025-08-19 01:50:00 190642.014 0.5 Hz 8560 -14 -14
2025-08-19 02:50:00 21397165.78 0.375 us 8560 -14 -14
2025-08-21 10:30:00 20857634.07 0.3 us 8560 -14 -14
2025-08-23 08:10:00 25919414.9 0.2 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)